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Table 4 Result of between group comparison

From: Six-minute walk distance predicts hospitalization in elderly peritoneal dialysis patients: a single-center prospective cohort study

  Hospitalization
Yes (N=19) No (N=14)
Age (year) 78.1±5.8 71.6±4.3*
Male/female (n) 12/7 11/16
BMI 22.2±3.3 22.9±2.4
Type of PD (APD/CAPD, n) 5/14 11/6
PD vintage (month) 36 (18.0–76.5) 20 (10.5–29.5)*
Comorbidities (n (%))
 Hypertension 19 (100.0) 13 (76.4)
 Diabetes 14 (73.7) 7 (41.2)
 Cardiovascular disease 4 (21.1) 6 (35.2)
Laboratory data
 TP (g/dl) 6.5±0.8 6.7±0.7
 Alb (g/dl) 3.0±0.7 3.1±0.3
 BUN (mg/dl) 57.4±21.7 59.3±15.3
 Cr (mg/dl) 8.4±3.1 10.2±2.6
 Na (mEq/l) 135.6±2.7 126.5±2.7
 K (mEq/l) 4.1±0.5 4.0±0.7
 Ca (mg/dl) 8.3±0.8 8.4±0.6
 P (mg/dl) 5.6±1.8 5.7±1
 Hb (g/dl) 11.4±1.3 11.2±0.8
 CRP (mg/dl) 0.1±0.1 0.2±0.1
Physical function
 6-min walk distance (m) 270.9±97.6 386.1±102.2*
 SPPB (points) 10 (7–10) 12 (10.3–12) *
 Lower extremity muscle strength (%) 32.4±8.8 39.5±9.6
 10-m walk speed (m/s) 0.9±0.3 1.1±0.2
  1. BMI body mass index, TP total protein, Alb albumin, BUN blood urea nitrogen, Cr creatinine, Na natrium, K potassium, Ca calcium, P phosphorus, Hb hemoglobin, CRP C-reactive protein levels, SPPB short physical performance battery
  2. The values are expressed as mean±SD or median (25th to 75th percentiles)
  3. * p<0.05 according to Student’s t and Mann-Whitney tests